A yellow weather warning for rain is in place across Connaught counties until 6pm tomorrow (Tuesday) evening.
Counties Longford, Offaly, Westmeath, Cavan, Donegal, Clare, Cork, Kerry, Limerick and Tipperary are also affected.
Met Eireann is advising that periods of heavy rainfall may lead to some local flooding as river levels remain elevated.
Rainfall accumulations of 40 to 50mm in places will occur, with some spot flooding.
Strong winds at times also today, with gales on coasts.